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2004 Mercury Mountaineer

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2004 Mercury Mountaineer do not stand out strongly from the model-year median of 117.

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When problems were reported

Mileage at the reported incident

181 reports with mileage · 29 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Structure. Review the 79 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 64 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Vehicle Speed Control. Review the 21 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

11 crash reports2 fire reports15 injury reports

What owners actually said

210 reports
143,000 miles · Mar 7, 2016
Engine

MY VEHICLE SHUTS OFF WHILE DRIVING. NO WARNING, LOSES POWER STEERING, LOSES POWER BRAKES. IT WILL START RIGH BACK UP ONCE I SHIFT INTO PARK. THIS HAPPENS AT ALL DIFFERENT SPEEDS AND TEMPERATURES. I COULD HAVE JUST GOT IN THE CAR OR BEEN DRIVING FOR HOURS. HAPPENS AT 15MPH AND 60MPH JUST THE SAME. HAVE ALMOST BEEN HIT FROM …

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MY VEHICLE SHUTS OFF WHILE DRIVING. NO WARNING, LOSES POWER STEERING, LOSES POWER BRAKES. IT WILL START RIGH BACK UP ONCE I SHIFT INTO PARK. THIS HAPPENS AT ALL DIFFERENT SPEEDS AND TEMPERATURES. I COULD HAVE JUST GOT IN THE CAR OR BEEN DRIVING FOR HOURS. HAPPENS AT 15MPH AND 60MPH JUST THE SAME. HAVE ALMOST BEEN HIT FROM BEHIND OF SEVERAL OCCASIONS WHEN THIS HAS HAPPENED.

NHTSA ODI #10840317

135,000 miles · Feb 23, 2016
Power Train

FAILURE OF FRONT DIFFERENTIAL MOUNT CARRIER BUSHINGS FAILURE LEADING TO TWO TRANSMISSION REBUILTS,TRANSFER CASE REBUILD, AND OVER $5000.00 IN REPAIRS. FAILURE OF CARRIER BUSHINGS WOULD LEAD TO FRONT END LOCKING UP. CAUSING A JACKHAMMER AFFECT ON THE DRIVETRAIN OF THE VEHICLE. TO CLOSE CALLS DUE TO FRONT END LOCKING UP. ACCIDENT…

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FAILURE OF FRONT DIFFERENTIAL MOUNT CARRIER BUSHINGS FAILURE LEADING TO TWO TRANSMISSION REBUILTS,TRANSFER CASE REBUILD, AND OVER $5000.00 IN REPAIRS. FAILURE OF CARRIER BUSHINGS WOULD LEAD TO FRONT END LOCKING UP. CAUSING A JACKHAMMER AFFECT ON THE DRIVETRAIN OF THE VEHICLE. TO CLOSE CALLS DUE TO FRONT END LOCKING UP. ACCIDENTS WERE AVOIDED DUE TO DRIVER VIGILANCE. HAVE PICTURES OF BUSHINGS AND WHAT'S LEFT OF THE BUSHINGS.

NHTSA ODI #10837659

80,000 miles · Feb 3, 2016
Visibility/wiper

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE DRIVING, THERE WAS A POPPING NOISE FROM THE REAR OF THE VEHICLE. UPON INSPECTION, IT WAS DISCOVERED THAT THE REAR LIFT GATE WINDOW HAD SUDDENLY SHATTERED. THE CONTACT INDICATED THAT WINDOW WAS REPLACED BUT THE FAILURE REOCCURRED. AFTER REPLACING THE …

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TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE DRIVING, THERE WAS A POPPING NOISE FROM THE REAR OF THE VEHICLE. UPON INSPECTION, IT WAS DISCOVERED THAT THE REAR LIFT GATE WINDOW HAD SUDDENLY SHATTERED. THE CONTACT INDICATED THAT WINDOW WAS REPLACED BUT THE FAILURE REOCCURRED. AFTER REPLACING THE WINDOW A SECOND TIME THE CONTACT RECENTLY DISCOVERED THAT THE WINDOW PANEL AND GLASS HAD CRACK. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.

NHTSA ODI #10823895

142,000 miles · Jan 14, 2016
EngineFuel/propulsion System

THIS VEHICLE IDLES VERY LOW AND STALLS AT VARIOUS SPEEDS. NO WARNING IS GIVEN ENGINE JUST SHUTS DOWN. SPARK PLUGS HAVE BLOWN TOTALLY OUT FROM THE ENGINE SEVERAL TIMES.

NHTSA ODI #10820147

135,000 miles · Jan 5, 2016
Electrical System

WHILE MY 17 YEAR OLD DAUGHTER WAS DRIVING WITH THE CRUISE CONTROL ON IN A 30 -40 MPH ZONE, SEVERAL LIGHTS CAME ON, THE POWER STEERING WENT OUT, AND THE VEHICLE STALLED. SHE WAS ON A SMALL 2 LANE ROAD, AND THERE WERE NO WARNINGS PRIOR TO THE OCCURRENCE. SHE WAS VERY SCARED, SHE TURNED ON THE HAZARD LIGHTS AND CALLED ME IMMEDIATEL…

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WHILE MY 17 YEAR OLD DAUGHTER WAS DRIVING WITH THE CRUISE CONTROL ON IN A 30 -40 MPH ZONE, SEVERAL LIGHTS CAME ON, THE POWER STEERING WENT OUT, AND THE VEHICLE STALLED. SHE WAS ON A SMALL 2 LANE ROAD, AND THERE WERE NO WARNINGS PRIOR TO THE OCCURRENCE. SHE WAS VERY SCARED, SHE TURNED ON THE HAZARD LIGHTS AND CALLED ME IMMEDIATELY. THE VEHICLE THEN RESTARTED AND SHE DROVE HOME. TODAY (JAN. 5, 2016) THE PROBLEM OCCURRED AGAIN, FORTUNATELY IN A SLOW SPEED ZONE AGAIN. SHE WAS ABLE TO RESTART THE VEHICLE AND CONTINUE DRIVING. THIS PROBLEM IS POTENTIALLY VERY DANGEROUS AND NEEDS TO BE ADDRESSED BY THE MANUFACTURER, OR THEY NEED TO OFFER A BUY BACK AT FULL VALUE FOR PLACING PEOPLE AT RISK.

NHTSA ODI #10818272

85,000 miles · Sep 30, 2015
Structure

REAR LIFT GATE WINDOW HINGES RUSTED/CORRODED. HINGES HAVE BROKEN CAUSING WINDOW TO SHIFT AND MOVE.

NHTSA ODI #10778866

89,600 miles · Jul 6, 2015
Vehicle Speed Control

ENGINE DIED HAS REPEATED ONLY A FEW TIMES AT OR ABOVE 50MPH OVER SPAN OF TIME

NHTSA ODI #10732320

107,000 miles · Jun 23, 2015
StructureInjury

TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS PARKED, THE REAR LIFTGATE GLASS STRUT DISENGAGED AND THE GLASS DETACHED FROM THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 107,000. ...UPDATED 07/30/15 *BF!..UPDATED 08/13/15 …

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TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS PARKED, THE REAR LIFTGATE GLASS STRUT DISENGAGED AND THE GLASS DETACHED FROM THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 107,000. ...UPDATED 07/30/15 *BF!..UPDATED 08/13/15 *BF UPDATED 10/26/2017*CN

NHTSA ODI #10726806

160,000 miles · May 22, 2015
Air Bags

I WAS DRIVING DOWN THE STREET AND ALL OF A SUDDEN MY SIDE AIRBAGS DEPLOYED. I DID NOT HIT A POT HOLE, THERE WAS NO ACCIDENT, THEY WENT OFF BY THEMSELVES. *TR

NHTSA ODI #10720970

Mileage unknown · Feb 11, 2015
Unknown Or Other

DOOR DINGS AND DENTS. *TR

NHTSA ODI #10682705

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

3

EA09013 · Vehicle Rollaway Allegations

Opened Aug 18, 2009 · Closed Feb 12, 2013

Status: closed (inferred from source dates) · Power Train:automatic Transmission:gear Position Indication (prndl); Power Train:automatic Transmission:lever And Linkage:column Shift; Steering; Steering:column; Steering:column LOCKING:ANTI-THEFT Device

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Additional source detail variants (5)

Power Train:automatic Transmission:gear Position Indication (prndl)

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Power Train:automatic Transmission:lever And Linkage:column Shift

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering:column

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering:column LOCKING:ANTI-THEFT Device

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

Steering

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

RQ08003 · Rear Liftgate Glass Hatch Failure

Opened Jun 23, 2008 · Closed Oct 24, 2008

Status: closed (inferred from source dates) · Structure:body:hatchback/liftgate; Structure:body:hatchback/liftgate:hinge And Attachments; Structure:body:hatchback/liftgate:support Device/strut; Visibility:glass, Side/rear

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Additional source detail variants (4)

Structure:body:hatchback/liftgate

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Structure:body:hatchback/liftgate:hinge And Attachments

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Structure:body:hatchback/liftgate:support Device/strut

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

Visibility:glass, Side/rear

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

DP05005 · Spark Plug Ejection From Cylinder Head

Opened Sep 22, 2005 · Closed Jan 4, 2006

Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:gasoline

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Additional source detail variants (3)

Engine And Engine Cooling:engine

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Engine And Engine Cooling:engine:gasoline

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

Engine And Engine Cooling

ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VERY FEW INCIDENTS, VEHICLE DAMAGE WAS LIMITED TO THE ENGINE.IN ONE INCIDENT, THE COMPLAINT REPORTED THAT THE FUEL RAIL WAS DAMAGED AND REPLACED AFTER ONE OF THE SPARK PLUGS EJECTED FROM THE ENGINE; HOWEVER, THE COMPLAINANT REPORTED THAT THE DAMAGE DID NOT RESULT IN ANY TYPE OF FUEL LEAK OR FIRE.IN ANOTHER INCIDENT, THE ONLY INCIDENT WHERE A FIRE WAS ALLEGED, THE COMPLAINANT REPORTED THAT NO FLUID LEAK WAS OBSERVED, BUT THAT A FIRE RESULTED AFTER THE SPARK PLUG HAD EJECTED FROM THE ENGINE AND HE HAD RESTARTED THE VEHICLE AND DRIVEN TO ANOTHER LOCATION.NONE OF THE COMPLAINANTS REPORTED ANY DAMAGE TO THE VEHICLE HOOD.(6) ONLY TWO COMPLAINANTS REPORTED THAT THEY OBSERVED WHAT APPEARED TO BE SOME DROPS OF FUEL COMING FROM THE CYLINDER WHERE THE SPARK PLUG HAD FAILED OR ON THE SPARK PLUG ITSELF; HOWEVER, EACH OF THESE COMPLAINANTS REPORTED THAT THERE WAS NO SMOKE OR FLAMES AS A RESULT OF HIS INCIDENT.AS THE PETITIONER NOTED, AND ODI?S ANALYSIS SHOWED, IT IS POSSIBLE FOR A SPARK PLUG TO DETACH FROM THE ENGINE CYLINDER THREADS IN THE SUBJECT VEHICLES.HOWEVER, ODI?S ANALYSIS OF 474 COMPLAINTS DESCRIBING SUCH INCIDENTS FOUND ONLY A VERY FEW ALLEGED ANY SAFETY-RELATED CONSEQUENCES.NONE OF THESE SHOWED ANY EVIDENCE OF A SERIOUS SAFETY CONSEQUENCE.GIVEN THE LARGE POPULATION AND RELATIVELY LONG EXPOSURE TIME OF THE SUBJECT VEHICLES, THE COMPLAINT ANALYSIS INDICATES THAT THE RISK TO MOTOR VEHICLE SAFETY FROM THE ALLEGED DEFECT IS VERY LOW.IN VIEW OF THE FOREGOING, IT IS UNLIKELY THAT NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF THE ALLEGED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.